| EISL B
£ million |
|
|---|---|
| Station | 58 |
| Airport walkway | 6 |
| Airport crossing | 53 |
| Newbridge - Ratho quadrupling | 15 |
| Rail junctions and viaducts | 137 |
| Road and tram bridges | 55 |
| Rail trackbed | 20 |
| Other civil works | 4 |
| Rail trackworks | 50 |
| Rail signalling and communications | 25 |
| Rail electrification | 17 |
| Land | 35 |
| Sub-total | 474 |
| Optimism bias (44%) | 208 |
| Total estimate | 682 |
| Less: savings from simultaneous construction | -82 |
| Reduced estimate | 600 |